Module: LittleGhost::MCP::ImmutableValue

Defined in:
lib/little_ghost/mcp/types.rb

Overview

:nodoc:

Class Method Summary collapse

Class Method Details

.array(value, field:) ⇒ Object 



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# File 'lib/little_ghost/mcp/types.rb', line 22

def array(value, field:)
  raise ProtocolError, "MCP #{field} must be an array" unless value.is_a?(Array)

  freeze_value(DataMap.new("items" => value).fetch("items"))
rescue ArgumentError => error
  raise ProtocolError, "MCP #{field} is invalid: #{error.message}"
end

.freeze_value(value) ⇒ Object 



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# File 'lib/little_ghost/mcp/types.rb', line 30

def freeze_value(value)
  pending = [value]
  until pending.empty?
    current = pending.pop
    case current
    when Hash
      current.each do |key, child|
        key.freeze
        pending << child
      end
    when Array
      current.each { |child| pending << child }
    end
    current.freeze
  end
  value
end

.mapping(value, field:) ⇒ Object 



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# File 'lib/little_ghost/mcp/types.rb', line 8

def mapping(value, field:)
  raise ProtocolError, "MCP #{field} must be an object" unless value.is_a?(Hash)

  freeze_value(DataMap.new(value))
rescue ArgumentError => error
  raise ProtocolError, "MCP #{field} is invalid: #{error.message}"
end

.optional_mapping(value, field:) ⇒ Object 



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# File 'lib/little_ghost/mcp/types.rb', line 16

def optional_mapping(value, field:)
  return if value.nil?

  mapping(value, field:)
end